Pokémon Go just teased some new features coming soon and a huge event in Chicago next month

Pokémon Go creator Niantic Labs is throwing its first real-world event for the game in Chicago next month, where it could finally unleash rare, “Legendary” creatures such as Mewtwo.

Niantic announced the event on Thursday alongside an in-game promotion for all 65 million users that starts June 13. New “collaborative” features are also being added in the coming weeks, which means we could finally see Pokémon trading.

The release of Legendary Pokémon has been highly anticipated since Pokémon Go was first made available nearly one year ago. It means that players will finally be able to catch creatures like Mewtwo and rare birds like Articuno and Moltres.

Here are the key details:

An in-game “Solstice” event will take place on June 13. More fire and ice-type Pokémon will spawn during the event, and there will be additional XP bonuses for throwing Poké Balls and discounted Lucky Eggs.

Following the Solstice event, Niantic Labs says it will release an update “focused on collaborative group gameplay,” which could mean that trainer-to-trainer Pokémon trading will finally be added. The update could also pave the way for Legendaries, since multiple trainers will likely need to use their strongest Pokémon that normally sit in gyms to take down Legendaries together.

The first-ever “Pokémon Go Fest” is happening in Chicago’s Grant Park on Saturday, July 22. Tickets and more information for the event will be made available online on Monday, June 19 at 10:00 a.m. PST. Niantic has previously teased that Legendaries will be released during real-world events where lots of players are gathered, and Grant Park is capable of holding more than 10,000 people.

Chicago won’t be home to the only Pokémon Go event this year. Niantic says it will host real-world celebrations in shopping centres across Europe starting this month and a special “Pikachu Outbreak” event in Yokohama, Japan in August.